提出操作性条件反射学习观的心理学家是()
A.班杜拉
B.斯金纳
C.华生
D.皮亚杰
参考答案:B
成语“得陇望蜀”中的陇和蜀分别是哪两个省的简称[ ]
A、甘肃省、陕西省
B、甘肃省、四川省
C、陕西省、四川省
D、贵州省、四川省
My father was a heavy smoker. I ________ him to give up smoking, but my words didn't work.[ ]
A. suggested
B. tried to persuade
C. failed to suggest
D. managed to persuade